Yes, expect 5-6 years out of a standard electric one and 8-10 years out of a gas one. Having hard water without a softener usually causes problems and oft times shortens length of time water heater will last. Some better models come with a longer warranty than 5 years.
Good, but expensive to operate.
You can buy water heaters from any home hardware store.
You can purchase water heaters at any home improvement store like Lowes or Home Depot.
Tankless water heaters are low energy because they only run when the hot water is needed.
You can find in-line water heaters at any of the Home Depots in NYC, or at just about any plumbing or electrical store.
Water heater prices can be found on the websites of Lowe's, Home Depot, Sears, Amazon, and Walmart. Prices of water heaters are on any website that sells water heaters.
If you are interested in buying a cheap Rheem tankless water heater, why not look into buying one second hand? There are a variety of places worldwide which provide used items in good condition to their consumers.
It's as good as any other, Most water heaters sold in north America are very similar in construction and reliability
There are many drawbacks to ventless heaters. One drawback is that acidic byproducts may be created because of combustion. Water vapor may also be created by ventless heaters.
there should be
Maytag is one of the best brands out there for appliances. It is a bit pricey but it is good affordable. You won't regret buying any thing from Maytag.
Tankless water heaters are more energy and cost efficient than your typical water heaters. Of course, each person has their own needs and it is always a good idea to weigh out the pros and cons before making any decisions for a change. What works well for some may not work well for other.